796638-6 is a two-piece modular PCB terminal block header with closed ends designed for stackable wire-to-board connections at 5.08 mm pitch. This header component features a 90° orientation option and is part of TE Connectivity's BUCHANAN terminal block family, which utilizes rising cage screw clamp technology for secure wire termination. The product has a dimensional length (DIM A) of 30.48 mm and a secondary dimension (DIM B) of 30.67 mm, accommodating 6 positions in a compact stackable configuration. The modular design allows end-to-end stacking without loss of centerline spacing, and the closed-end header design provides enhanced protection and organization of wire connections. This terminal block is commonly used in industrial control systems, automation equipment, and PCB-mounted applications requiring reliable, organized wire management and secure electrical connections.